Organized apparatus for grooving can ends and applying ring-liners thereto



l. D. THORNBURGH.

VING CAN ENDS AND APPLY! APPLICATION FILED OCT-10, 1918.

ORGANIZED APPARATUS FOR G800 NG BINGLINERS THE RETO.

1,400,580. nted Debi; '20, 1921.

5 SHEETS'-S HEET l- 2. I 3% 5* Q N H i 6 m k I g r n. THORN BURGH'. ,O'R'GANIZED APPARATUS FOR Gaoovme cm ENDS AND APPLYING'RING LINERS TH'ERETO. APPLICATION FILED OCT. 10, l9l8. 1,400,580 Patentedv Dec. 20, 1921.

5 SHEETS-SHEET 2.

Him

BY $1, ATTORNEY.

1. n. THORNBURGH. ORGANIZED APPARATUS FOR'GROOVING'CAN ENDS AND APPLYING RING LINERS THERETO.

APPLICATION FILED OCT-110, 1918. 1 ,400,580, Patented Dec. 20, 1921.

5 SHEETS-SHEET 3.

8.8 izvvzNroR Jay W ATTORNEY.

I. D. THORNBURGH. ORGANIZED APPARATUS FOR GROOVING CAN ENDS AND APPLYING RING LINERS THEREIO- I APPLICATION FILED OCT-I0, I9I8. 1,400,580. Patented Dec. 20, 1921.

5 SHEETS-SHUT 4.

1 ATTONEY,

l. n. THORNBURGH.. ORGANIZED APPARATUS FOR GBOOVING CAN ENDS AND APPLYING RING LINERS TH ERETO. APPLICATION FILED OCT- IQ, I9I-8- 1,400,580. Patented Dec. 20, 1921.

5 SHEETS -SHEET 5. 6' 6'1 89 2 59 ATTORNEY).

UNITED STATES PATENT ()FFiCE.

IVAN I). THORNIBURGH, 0F BERKELEY, CALlIFORNIA, ASSIGNOR TO AMERICAN CAN COMPANY, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF NEW JERSEY.

oneanrznn anranarns non enoovrnecan ENDS AND APPLYING RING-LINERS rnnnnro.

Lei-00,580.

Specification of Letters Patent.

Patented Dec. 20, 1921.

Application filed October 10, 1918. Serial No. 257,636.

To all whom it may concern Be it known that 1, Ivan D. Ti-ronNnuner-r, a citizen of the United States, residing at Berkeley, in the county of Alameda and State oi? California, have invented certain new and useful Improvements in Organized Apparatus for Grooving Can Ends and Applying Ring-Liners Thereto, of which the following is a specification.

The hereinafter described invention consists of an apparatus for forming a'circumterential groove within the outer peripheral surface of the vertically drawn interior wall or shoulder of a can end, and p0- sitioning a cut gasket liner ring in order that the inner circumferential edge of the said liner ring will lie within the circumferential. groove formed in the can end in order to be held therein iy the overhang or" the peripheral wall; and the apparatus comprising coacting instrumentalities for feeding or delivering an unfinished can end from a stack of ungrooved ends, forming a circumferential groove or seat in the connecting vertical. wall of the can end, feeding a cut gasket liner ring from a stack of said rings and placing the same in axial alinement with a finished can end; forcing the liner ring over the interior drawn wall of the can end by a distortion of the inner circumferential edge thereof in order to seat the same within the circumferential groove or seat formed in the vertical wall of the can end, and finally discharging the gasket lined can end. In brief, the apparatus coniprises means for first grooving the vertical connecting wall of the can end or cover to form an annular recess or retaining seat, positioning a cut ring liner in axial alinement with the grooved can end or cover, and applying the positioned liner to the flange of the can end by a distortion of the inner periphery thereof to pass the overhang or retaining shoulder of the circumferential groove or recess so that the distortededge of the liner vill spring or seat itself into the annular recess formed in the vertical connecting wall of the can end or cover when the same has passed the over hang or shouldered portion thereof.

The object of the present invention, therefore, is to provide mechanism to re *eive a can end or cover of the straight flanged type and while moving the same to an assembling position or station, circum-terentially grooving the vertical wall section thereof to provide a seat for retaining a ring positioned uprm its straight flange, assembling a ring liner relative to said flange of the can end and holding the same united to the can end or cover without in any manner interfering with the proper functions of the liner or the flange of the can end or cover in their ultimate relation to the finished seam of a can when hermetically seamed thereto.

In order to comprehend the invention, reference should. he had to the accompanying sheets of drawings, wherein,

Figure l is a general plan view of a proposed apparatus tor carrying out the invention, disclosing intermittently rotating turrets for receiving unfinished can ends and gasket ring liners, conveying the same to an assembling station and placing the same in axial alinement, supplying the gasket liner to the flange of th can end or cover.

Fig. 2 is a front elevation of the machine disclosed by Fig. 1 of the drawings.

Fig. 3 is a plan sectional view taken on the line 3-3 of Fig. 2 01 the drawings and viewed in the direction of the arrows, said view illustrating the driving mechanism actuating va 'ious parts of the apparatus.

Fig. at is a part sectional end elevation taken on the line 44, Fig. 1 of the drawings, and viewed in the direction of the arrows, said view disclosing the end feed mechanism and the groove forming mechanism with its associated part-s.

F 5 is a transverse sectional view of the can end holder with a stack of unfinished can ends therein, said view being taken on the'sectional line of Fig. 1 of the drawings, and viewed in the direction of the arrows, and illustrating the lowermost can end of the stack as belng cut out and deposited within one of the seats of the turret for conveying the same to the grooving mechanism.

Fig. 6 is a view similar to 5, illustrating the can end or cover teed devices positioned for supporting the stack of ends or covers within the holder.

Fig; 7 is a transverse sectional view of the apparatus taken on the sectional line i Fig. 8 is a detailed sectional part broken view illustrating the mechanism for grooving the can ends or covers, and in position for operating on a positioned can end or cover for the grooving thereof.

F i 9 is a fra mental sectional lan View taken on the sectional line 9-9, Fig. 8 of the drawings, and viewed in the direction of the arrows.

Fig. is a. sectional elevation taken on the line 10-10, big. 1 of the drawings and viewed in the direction of the arrows, said view illustrating a gasket liner in position for removal from its stack of linersand disclosing a gasket liner in axial alinement with a positioned finished can end or cover and the means for assembling the liner relative to the flange of the positioned can end or cover. 7

Fig. 11, is an enlarged detailed sectional view disclosing one of the unfinished can ends or covers.

Fig. 12 is a similar view illustrating one of the finished can ends or covers and a gasket ring liner in axial alinement therewith, and the means for applying the liner to the flange of a can end.

In the drawings, reference being had more particularly to Figs. 1, 2 and 3 thereof, the numeral 1 is used to designate any suitable type of a supporting frame or table capable of sustaining the working parts of the apparatus, which in the present case, is illustrated as being upheld the supporting legs 2. A horizontal drlve shaft 3 is supported within the said frame structure and journaled for rotation in suitable bearings 41;, mounted upon an intermediate horizontal plate 5 secured to the supporting legs 2, and the said shaft 3 carries at its outer extremity a belt pulley 6 having power ap lied thereto from any outside source not ilustrated in v the drawlngs.

A horizontally disposed can end carrying turret 7 is mounted above the table 1, Fig. 7 of the drawings, the same being secured to a vertical shaft 8, which is journaled in bearings 9 and 10, formed respectively in the table 1 and plate 5, the said shaft 8 and turret 7, being intermittently rotated through the medium of suitable Geneva mechanism, comprising a Geneva wheel 11, Fig. 3 of the drawings, fixed upon the shaft 8 above the plate 5, and which is actuated by means of a crank arm 12, carrying a following roller 12 which is adapted to move into and out of the radial slots formed in the Geneva wheel 11, the said arm 12 being secured to a vertical shaft 13, which receives continuous rotation from the driving shaft 3, through the medium of the bevel gears let and 15, mounted respectively on the shafts 13 and 3, Figs. 3 and 4.- of the drawings. The turret 7 is provided or formed with a series of spaced circular apertures 16, Figs. 1 and 7 of the drawings, each of the said openings or apertures being of a diameter to receive an unfinished can end or cover so as to be supported by the table 1, the said openings being so disposed as during the rotary movement of the turret 7 to pass beneath a magazine or holder 17, for the unfinished or ungrooved can ends or covers 18. This can end or cover holding magazine is mounted above the horizontal table 1, Fig. 2 of the drawings, and is situated adjacent to and overhangs the turret 7. The said holder is provided with a circular opening or seat19, Fig. 1 of the drawings, which stands in axial alinement with one of the openings 16 of the turret 7 when the said turret is at a state of rest. The stack of horizontally disposed unfinished or ungrooved can ends or covers 18 rest within the opening 19 and withinupwardly extended bars 20, which constitute a continuation of the holder or magazine for the stack of ends or covers. The ends or covers are sup ported within the stack by means of oscillating feed bars 21, Figs. 1, 4:, 5 and 6 of the drawings. Each feed bar 21 is provided with a longitudinally disposed notch or groove 22, which extends substantially the length of the feed bars within the opening 19, of the magazine or holder for the ends or covers, and said notches when positioned as illustrated in Fig. 6 of the drawings, receive the flange of the lowermost can end 18 of the stack of can ends or covers 18, and thereby support the entire stack. A. partial rotation or oscillatory movement imparted to the bars 21 turn the notched portions thereof downwardly from the position shown in Fig. 6 of the drawings to that illustrated by Fig. 5 of the drawings, which throw or movement of the said bars results in a lowering of the lowermost can end 18 and the dropping thereof from the supporting notches 22 within one of the apertures 16 of the turret 7 which at such time stands in axial alinement therewith, Fig. 5 of the drawings, the remaining portion of the stack at such times being supported by the flange of the bottom-most can end or cover resting on the upper surfaces of the said bars.

The turning or oscillatory movement of the bars 21 is obtained from the rotation of the drive shaft 3 through the medium of the mechanism illustrated in Fig. 4 of the drawings, and which comprises the gears 28 mounted on the outer ends of the bars 21, Figs. 1 and 4; of the drawings, meshing with the rack portions 24 of a U-shaped yoke bar 25, which bar works in guide-ways 26 formed in a supporting bracket 27 depending from the table 1. The lower end of the bar 25 is pivotally connected. to the inner end of a lever 28, which lever is fulcrumed at 29, to the supporting frame structure of the apparatus, and at its outer end is pivoted to the upper end of a rod 30, which is connected at its'lower end to an eccentrio strap 31 of an eccentric 32, which said eccentric is fixed to the drive shaft'3. By means of this connection, with each rotation of the drive shaft 3, the feed bars 21-are oscillated so as to cause a picking off or cutting out of the lowermost can end 18 of the stack of ends within the holder, and a deposit thereof within one of the pockets 16 of the turret 7. The operating mechanism thus described is so timed as to deposit an unfinished end or cover within one of the pockets of theturret 7, when said turret is at a state of rest with the pocket or opening in axial alinement with the magazine or holder of the stack of can ends. 7

After an ungrooved or unfinished can end has been fed from the stack within the magazine or holderto within one of the apertures or openings of the turret 7, the said turret has imparted thereto a step rotation, the movement of which causes the seated unfinished can end or cover 18', to slide over the upper surface of the table 1 until the turret is brought at rest at the groove forming station of the apparatus, and which station is indicated by the letter B, Fig. 1 of the drawings, the grooving mechanism for the said can end or cover being illustrated in detail by Figs. 7, 8 and 9 of the drawings. At the grooving station of the apparatus for forming a circumferential groove in the vertical wall a which connects the outstanding flange a. of the unfinished can end or cover to the body portion 6 thereof, Fig. 11 of the drawings, there is situated a grooving roller which cooperates with a circular grooving track, the roller acting against the inner surface of the wall a of the can end or cover and bending the same over the forming edge of the circular track, which roller and cover at such times move together during a rest period of the turret 7 and operate in timed relationship, one with the other. This mechanism will be readily understood by reference to Figs. 3 and 7 of the drawings, it being noted that a vertical shaft 33 ex tending above the table 1 and through the plate 5 is journaled for rotation in bearings 34 and 35 of the said table 1 and plate 5, respectively, and is also journaled in a hearing 36 of a bracket 37, mounted upon the upper surface of the table 1, adjacent to and partially overhanging the turret 7 at the groove forming station D, Fig. 1 of the drawings. The said shaft 33 receives its motion of rotation from the shaft 13 through the medium of the spur gears 38 and 39, mounted respectively upon the shafts 33 and 13, Fig. 3 of the drawings. Beneath the turret 7 and in radial alinement with the turret shafts 8 and the shaft 33, Fig. 7 of the drawings, there is formed in the table 1 a circular pocket 40 in which is mounted for rotation a die block 41; the said block is provided with gear teeth 42 which mesh with a gear 43 fixed to the shaft 33, so that the rotary motion of the said shaft 33 is transmitted to the block 41 in order to cause the said block to slowly revolve about its own axis. The upper face of the block 4-1 stands flush with the top of the table 1, so that as the turret 7 revolves across the surface of the table 1 the unfinished can end or cover held in one of the pockets 16 is slid over the top of the said block and over a circular seat 4.4 formed in the upper face of said block, so as to stand in axial alinement with said seat when the turret 7 is brought to a state of rest, but being held out of the seat 14- by means of a spring-held ejector plate 45 which is slidably mounted within the block 41 and which normally rests with its upper face flush with the upper surface of the table 1, Fig. 8 of the drawings.

A grooving roller 46, is secured to the lower end of a vertically disposed spindle 17, Figs. 4:, 7 and 8 of the drawings, which spindle is j ournaled in an eccentric bushin 48 mounted for rotation and longitudinal movement above the table 1, the same working within a bearing 49 of the bracket 37 Fig. 7 of the drawing. This forming roller 46 is adapted to move downwardly to forming position within the circular connecting wall a of a can end or cover and to be moved radially to coact with a forming track of the die-block, and also to rotate for propelling the wall a of the can end around its circular length during the groove forming action. When the unfinished can end or cover 18 resting within one of the pockets 16 of the turret 7 has been moved to its position of rest upon the ejector plate 15, and above the circular seat 4 1 of the die-block 11, the grooving roller 16 is moved downwardly to bear against the can end 18 for forcing the same and the supporting ejector 4:5 to the position shown in Fig. 7 of the drawing. The parts are then positioned for the grooving of the wall member a of the can end or cover, at which time the circular outstanding straight flange of the can end or cover is still within the sphere of the turret pocket. The low ering of the forming roller 46 and its spindle 47 is accomplished in the following.

manner: Referring to Figs. 1, 2, 3 and 7 of the drawings, it will be noted that a vertical shaft 50 is journaled for rotation in a bearing 51 of the table 1, and in a bearing 52, of the bracket 37 the said shaft receiving rotation from the shaft 33 by means of a gear 53 fixed to the lower endof the shaft 50 it. i in.

a bearing 59 formed on a bracket 60, mount ed upon the table 1 adjacent to and partially over-lappingthe turret 7, 1 of the drawings. The opposite end of the lever 57 carries a roller 61, which works within an an nular groove 62, of a collar 68, secured to the upper end of the eccentric bushing 48,

Fig. 7 of the drawings. This construction permits of an oscillation of thecollar 63 and permitting a raising and lowering of the eccentric bushing l8 therewith. The forming roller 46 and its associated spindle 47, receives rotation from the shaft 38,

through the medium of the mating gears 64: and 65, the former being secured to the upper end of the spindle 47, and the latter fixed tothe upper end of the shaft 33. A die-forming track 66, 7 and 8 of the drawings, is provided or made in the side wall of the seat 44, and the same constitutes the circular die-grooving track, and into this track or die the vertical wall member a of the can end or coveris forced or pressed by the action of the forming, roller 46, which is moved toward the said track to compress thewall member a of thejcan end or cover therein, by means of the action of the eccentric bushing 4.8 mountedon the rotating spindle a7. The forming'rolleris moved toward and from the die-forming track through the medium of a cam 67,'secured to the shaft 50 above thebracket 37' and beneath the cam 54- operating against a cam following roller 68, carried upon one arm of lever 69, loosely mounted upon the shaft 33, and the opposite end of the said lever 69 terminates in a gear tooth segment 70, which extends into and meshes with gear teeth 71 cut in theouter surface of the eccentric bushinglS beneath the collar 63. A. compress'ionspring 72 fastened to the lever 69 and the bracket 37 holds the roller 68 firmly in contact with the cam 67, Fig. 1 of the drawings; thus, under the action of the ca1n67, the lever 69 is oscillated and said motion is transmitted to the eccentric bushing 48, whose oscillation causes the rollerl6to co-act with the die-track as described with a rotary movement, to groove circumferentially the wall member a of the.

groove 66 is in excess of the peripheral length of the grooving wall of the can end, which permits 'of the same being fully liners.

grooved before the die-block ll hascompleted one revolution. portion of the forming groove 66 is cut away, as at "('3 (Fig. 9), and such cut away portion passes over a portion of the completely formed groove of the can end immediately after the grooving operation. Aftertheformation of the groove in the wall member a ofthe can end or cover, the grooving roll 46 is partially lifted by the hereinbefore described cam operated mechanism, and the ejector plate 45 under the influence of its spring action raises and lifts the grooved can end through the opening or cut-away portion 73 to its normal position above thetablel, it being understood that the said end or cover at all times has its peripheral flange within the turret 6% is extended to allow vertical movement upon the gear without disengagement.

As illustrated in Figs. 1, 2 and 10 of the drawings, a gasket carrying turret 74; is mounted within a depressed circular seat '75, formed in the table 1 adjacent the turret 7, the upper surface of the said turret 74 being flush with the upper surface of the table 1 of the frame structure. The turret 7a is secured to a vertical shaft 7 6, which receives intermittent rotation. from the Geneva operatedturret shaft 8 by means of the spurgears 77 and 78, fixed respectively to the lower'end of the shafts 8 and 76, Figs. 2 and 3 of the drawings. The turret 74 is formed with pockets 79,-in which are slidably held core pieces 80, the outside diameter of which is the same practically as the inside diameter of a cut gasket ring 81. Acircular seat 82 is formed in the upper surface of the turret. 7 1 adjacent to and concentric with each of the pockets 79, said seats being of a diameter sufiicient to receive a gasket liner therein and of a depth coextensive with the thickness of said A gasket holder or magazine 83 having extension rods 84 is secured to a bracket 83' projecting from the supporting frame of the apparatus, and the said holder 1s positionedat a liner applying station C, Fig. 1 of the drawings, and partially overhangs the turret 74. A circular seat opening 85 of the holder or magazine 83 is adapted to hold'a stack of horizontally disposed gasket ring liners 81, in axial alinementwith the circular seat 82 of the turret 74, when the same is in a position of rest, at which time the core piece 80, below the said holder 83 is held in an upward position (Fig. 10) by means of the springs 80', so that the top surface thereof lies flush with the top surface of the turret 74 stands at rest with one of its circular seats 82 in axial alinement with the opening of the gasket liner holder ormagazine, the lowermost gasket liner 81 of the stack, under pressure of the weight 86 placed between the rods 84 of the holder, moves within the said seat 82 of the turret and completely fills the annular channel formed by the vertical wall of said seat and the outer wall surface of the spring held block 80, Fig. 10 of the drawings, it being understood that the positioning of a gasket liner within the annular chamber thus formed is done simultaneously with the forming of a groove within a can end as previously described.

On the next step rotation or movement of the turret 7 and the turret 7 1, the. grooved end or cover 18 within one of the pockets 16 of the turret 7, is swept from the position of rest at station E over the upper surface of the table 1 to the position or station D 1 of the drawings, at which time the turret 74 with a gasket liner 81 held thereby has, moved to place the gasket liner in axial alinement with the can end or cover carried by the turret 7 or in other words, the turret 74: and the turret 7, carrying respectively a gasket liner and a grooved can end or cover are brought to a stateof rest at the station D with the members held thereby in axial alinement. l Vhen the formed end or cover and the gasket ring liner have reached the said position D, which is the assembling station of the apparatus, and stand in axial alinement, an assembling plunger 87, Figs. 1 and 10 of the drawings, comes intoaction for assembling the can end or cover and the positioned gasket liner. The said assembling plunger 87 is provided with an upwardly projecting stem 88, Figs. 7 and 10 of the drawings, which stem is slidably mounted within. a suitable bearing 89, of the bracket 60, the plunger 87 standing in axial alinement with the positioned can end or cover at the assembling station. A lever 90, pivotally connected to the upper end of the stem 88 of the plunger 87 is connected at its opposite end to the rock-shaft 58, Fig. 1 of the drawings, which shaft 58 is cam-operated as heretofore described. With the turrets 7 and 74 standing at rest at the assembling station, the plunger 87 descends within the opening 16, of the turret 7 and acting against the positioned can end or cover forces the same downwardly against the spring action of the core piece 80. In order to permit of the body member Z) of the formed end or cover moving downwardly within the positioned pocket 79. of the tur- When the said turret ret 7 4:, the same is cut away below the plane of the seat 82 so as to provide a clearance space 91. It will be understood that the inner diameter of the gasket ring liner is slightly less than the enlarged outer diameter of that portion of the can end or cover adjacent the groove, or the overhang portion of the said groove, so that during the passage of the body member 5 at the overhang edge of the circumferential groove of the member a of the can end or cover through the gasket liner, the latter is bent backwardly distorted or expanded on its inner diameter, and when the said enlarged portion of the end or cover has passed through the inner diameter of the gasket ring said distorted diameter of the gasket liner is restored or springs back to normal position and fits snugly within'the circumferential groove formed in the wall member a of the end or cover 18. On the plunger 87 being lifted or moved away from the lined can end or cover, the spring 80 raises the core-piece 80 and the lined can end 18 resting thereon, and moves or positions the lined can end wholly within the opening 16 of the turret 7.

After the operation just described, the turret 7 has imparted thereto a part rotation or step movement, which sweeps or moves the gasket lined end 18 from its position at the assembling station I) to the position or discharge station E, Fig. 1 of the drawings, at which station, the gasket lined can end or cover falls by gravity through an opening 92, cut in the tablel into a discharge chute 93, Fig. 7 of the drawings, by means of which the gasket lined end is conveyed to any suitable place of deposit.

From the foregoing it will be noted, that the cam end or cover to be grooved is fed into one of the'pockets of the turret 7, at the station A, and is then transferred by the turret 7 to the grooving station B, at which station the vertical wall. member a of the can end or cover is grooved to receive the inner circumferential edge of a gasket liner, the turret 7 then advancing or moving with the grooved can end or cover to the assembling station D. While these operations are taking place a gasket ring lineris delivered into one of the pockets of the turret 74; at the feed station C for the ring liners, and the said liner is transferred from the said station and brought or positioned into axial alinement with the can end or cover at the assembling station D, where the parts are assembled, after which the rotary motion of the turret 7, conveys the assembled gasket lined can end or cover to'the discharge station E, from whence the same is discharged from the apparatus.

The apparatus has been illustrated and described in its preferred embodiment for the carrying out of the invention, but I do not wish to be understood as limiting or restricting the invention to the detailed construction of the working parts shown and described, but on the contrary wish to be understood as claiming as broadly as the state of the art will permit the interconnected working instrumentalities whereby thecan end or cover is circumferentially grooved or recessed to receive a gasket liner, a gasket liner brought into axial alinement with the grooved can end or cover and the parts assembled by causing a distortion of the inner circumferential edge of the gasket llner as the same is passed over the overhang formed by the circumferential grooving of the wall member a of the can end or cover.

It is apparent, that if so desired, the can holder or magazine may be filled wlth a stack of previously grooved can ends or c ov ers, in which event, the groove forming mechanism may be eliminated, and the grooved can ends or covers conveyed or transferred from the can end feed station direct to the assembling station. However,

preference is given to embodying the grooving mechanism in the apparatus for assembling the ends and gasket liners.

Having thus described my invention what I claim as new and desire to protect by Letters Patent is:

1. In an apparatus for the described purpose, the same comprising means for receiving and positioning straight flanged can ends at a forming station and transferring the same to an assembling station, mechanism situated at the forming station for circumferentially grooving the wall connection between the straight flange and the body member of a can end positioned at saidstation, means for positioning a gasket ring liner at the assembling station and in axial alinement with a grooved can end there positioned, mechanism at said station for assembling the can end and gasket liner by distorting the inner peripheral edge portion of the liner o pass the overhang of the groove formed in the can end in order to seat within the groove,and devices for ejecting the gasket lined end. 7

2. An apparatus for the described purpose provided with a forming station and an essembling station spaced therefrom, the same comprising a horizontally disposed carrier having a plurality of spaced apertured can end receiving openings'formed therein, devices for delivering successively straight flanged non-grooved can ends into the receiving openings of the said carrier, means for actuating the carrier to position a can end held therein successively to the forming station andthe assembling station of the apparatus, mechanism situated at the forming station for grooving 'circumferentially the wall connection between the outstanding flange and body member of the can end posipose, the combination with mechanism for grooving circumferentially the connection wall member of a flanged can end, a horizontally disposed apertured rotatable turret for recelving ungrooved can endsand advancing V the same successively to the grooving mechanism and to an assembling station spaced therefrom, a horizontally disposed apertured turret for receiving gasket ring liners and advancing the same to the assembling station and in axial alinement with a positioned grooved can end, mechanism at said station for assembling the alined members by dis torting the inner peripheral edge of the liner to pass the overhang of the formed groove of the can end to seat therein, and for actuating the described parts in timed relation.

4-. In an apparatus for the described purpose, the combination of means for forming an exterior circumferential groove 7 in the vertical shoulder of a can end to receive and reta1n.ar1ng liner therein, mechanism for receiving and alining such grooved can end and a gasket liner whose inner diameter is lesscthan the diameter of the ungrooved portion of said vertical shoulder, vertically movable means for assembling the said axially alined members by causing a distortion of the inner peripheral edge of the ring liner as it is carried over the said ungrooved portion of the vertical shoulder and into said circumferential groove, and devices for actuating the described working parts in timed relation. r

5. In an apparatus for assembling gasket liners relative to can ends for the hermetic closure for sanitary cans, the same comprising means for receiving flanged can ends and circumferentially grooving the connecting wall member between the flange and the body of the can end to form a peripheral shoulder to enter within the mouth of a can, means for placing the grooved can end and a gasket ring liner in axial alinement, and associated devices for applying the ring linerto the flange of a can end by causing the shouldered portion of the can end to distort the inner circumferential edge of the liner to pass said shoulder and seat itself within the groove formed in the connecting wall member of the can end.

6. An apparatus for applying gasket liners to straight flanged can ends, whic h consists of associated interconnected working instrumentalities for receiving a can end and forming in the outer surface of the vertical connecting wall member thereof, a peripheral groove, placing a gasket ring liner in axial alinement with the said grooved can end, applying the gasket liner to the flange of the can end by a distortion of its inner circumferential edge to clear the overhang of its grooved wall member, and mechanismfor actuating the mentioned in terconnected working instrumentalities in timed relation. a 7

7. In an apparatus for the described purpose, the combination with a block having a seat formed therein for the reception of a portion. of an ungrooved can end, and provided with a die-ring, means for positioning an unflan'ged can end ontofthe seat of the said block, a rotary vertically and radially movable forming roll adapted to move within said seat and coact with the die thereof for circumferentially grooving the outer surface of the connecting wall member of the can end, means for imparting rotary, vertical, and radial movement to said dieforming roller, devices for ejecting a grooved can end from within the seat of the said block, means for transferring the grooved end to an assembling station, mechanism for positioning a gasket ring liner at said sta tion beneath and in axial a-linement with the positioned can end, devices at said station for assembling the axially alined members by distorting the inner circumferential edge of the said liner to pass the overhang of the grooved connecting wall member of the can end to seat within the groove thereof, and devices for ejecting the gasket lined can end.

8. An apparatus for the described pnrpose, having embodied therein a can end feed station, a groove-forming station, a gasket liner feed station and an assembling station, an apertured turret for receiving ungrooved can ends and transferring the same respectively to the forming station and the assembling station of the apparatus, a can end holder or magazine situated at the can end feed station, a ring liner magazine or holder situated at the feed station for the gasket liner, means for delivering the lowermost can end of a stack of held ends from the holder thereof into one of the apertures of the transfer turret when the same is at a state of rest, mechanism at the forming station for peripherally grooving the vertical connecting wall member of a can end, said means comprising a fixed circular die and a rotary, vertically and radially movable forming roll, a horizontally disposed apertured turret movable beneath the holder or magazine for the ring liners adapted to receive in one of its apertures the lowermost ring liner of a stack held within, the said holder and to transfer the same to the assembling station and in axial alinement with a grooved can end held thereabove, vertically movable means at said station for assembling the alined members by causing a distortion of the inner peripheral edge of the gasket ring liner to pass the overhang of the connecting wall member of the can end so as to seat within the groove thereof, and means for actuating the mentioned working parts in timed relation.

9. In an apparatus for the described purpose the combination with a groove forming die, of a traveling carrier movable to successive station including ,a grooving station and having means for positioning a straight flanged can end relative to said die with its vertical connecting wall member in parallel relation to said die, a die forming roller at the grooving station adapted to ooact with said die for grooving peripherally the outer surface'of the connecting wall member of a positioned can end, and 1 means for imparting rotary vertical and radial movement to said forming roll.

10.. In an apparatus for the described purpose, the same comprisingmeans for receiving a straight flanged can end, devices coacting therewith for grooving peripherally the outer surface of the vertical connecting wall member of the can end, means .for positioning in vertical alinement with the grooved can end a gasket ring liner, the

internal diameter of which is slightly less M than the diameter of the overhang of the groove formed in the can end, and means for assembling the alined member by distorting the inner peripheral edge ofthe liner to pass the overhang of the can end to seat within the g'roove thereof.

11. In an apparatus for the described purpose, the combination of interconnected mechanism for forming an exterior circumferential groove in the described vertical connecting wall of a can end, means for placing said grooved can end and a gasket ring liner in axial alinement, and means for assembling said alined members by axial pressure.

12. In an apparatus for the described purpose, the combination with mechanism for grooving the outer surface of the connecting wall member of a straight flanged can end, devices for delivering the grooved end to an assembling station, means for positioning a gasket ring liner at said station in axial alinement with the grooved can end, and mechanism for assembling said alined members by causing a distortion of the inner circumferential edge of the liner to clear the overhang of the can end groove to seat therein.

13. In an apparatus for the described purpose, the combination with mechanism for positioning at an assembling station a flanged can end having a circumferential groove formed in the outer surface of its connecting wall member, a turret provided with a plurality of apertures each having a circumferential seat for receiving ring liners, mechanism for actuating said turret for transferring gasket liners to the assembling station and in axial alinement with a can end positioned at said station, a spring held core piece in each aperture of the turret coacting with the vertical wall of the liner seat thereof to provide an annular chamber forthe reception of the liner as moved onto its seat, and vertically movable means at the assembling station for forcing the can end toward the liner and applying the same to the flange thereof by causing a distortion of the inner circumferential edge of the liner to pass the overhang of the groove formed in the connecting wall of the end.

14. The combination of means for forming an exterior circumferential groove in the described vertical wall of a can end, means for receiving and holding in axial alinement said grooved can end and a gasket ring liner whose inner diameter is less than that ofthe ungrooved portion of said vertical wall, and means for moving the can end axially toward the liner for assemb ing the latter in said circumferential groove.

15. In an apparatus for the described purpose, the combination of interconnected mechanism for forming an exterior circumferential groove in the described vertical connecting wall of a can end, means for placing said grooved can end and a gasket ring liner in axial alinement with the can end arranged with the bottomside toward and above said gasket ring liner, and means. for

' pressure.

1,4.o0,5so

assembling said alined members by axial 16. In an apparatus for the described purpose, the combination with a die for forming a. circumferential groove in the outer surface of the connecting wall of a flanged can end, of a forming roll for coacting with the die for forming said groove, interconnecting working instrumentalities for imparting rotary, vertical and radial move ment to the forming roll and an endless carrier for positioning a succession of flanged can ends to be grooved within the sphere of said die and forming roll.

"17. In an apparatus for the described purpose having a can end groove forming station and an assemblingstation spaced therefrom, means for receiving a flanged can end and advancing thesame to the groove forming station and from said station to the assembling station, mechanism situated at the forming station for grooving the outer surface of the connecting wall member of the end, means for delivering at the assembling station and in axial alinement with a positioned grooved can end a ring liner whoseinner diameter is less than that of the body member of the can end, and mechanism at the assembling station for applying the ring liner to the flange of the can end by causing a distortion of its inner circumferential edge to clear the overhang of the groove in the can end andseat within said groove.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

IVAN D. THORNBURGH.

Witnesses N. A. AoKnR.

D. B. RICHARDS. 

